List of monarchs of Tonga

King of Tonga
Coat of arms of Tonga
Incumbent
Tupou VI since 18 March 2012
Details
Style	His Majesty
Heir apparent	Tupoutoʻa ʻUlukalala
First monarch	George Tupou I
Formation	December 4, 1845; 178 years ago (1845-12-04)
Residence	Royal Palace, Nukuʻalofa

Politics of Tonga
Constitution
Monarchy King Tupou VI Crown Prince Tupoutoʻa ʻUlukalala Succession Privy Council
Executive Prime Minister Siaosi Sovaleni Deputy Prime Minister Vacant Cabinet
Legislative Legislative Assembly Speaker: Lord Fakafanua Members
Judiciary Court of Appeal Supreme Court
Elections Recent elections (constituencies) General: 2014 2017 2021 2025 Political parties Democratic Party of the Friendly Islands (DPFI) People's Democratic Party (PDP)
Administrative divisions
Foreign relations Ministry of Foreign Affairs Minister: Fekitamoeloa ʻUtoikamanu Diplomatic missions of / in Tonga Nationality law Passport Visa requirements Visa policy
Other countries
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This is a list of monarchs of Tonga since 1845, after the Constitution of Tonga established the role of the monarch. The first constitutional monarch of Tonga was George Tupou I.